# Official full node returns 502 when querying events in history

**URL:** <https://forums.sui.io/t/official-full-node-returns-502-when-querying-events-in-history/46424>\
**Category:** Technical Support\
**Created:** [November 16, 2024, 12:24am UTC](https://forums.sui.io/t/official-full-node-returns-502-when-querying-events-in-history/46424 "2024-11-16T00:24:06Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![xinxingliu86](https://dub1.discourse-cdn.com/sui/user_avatar/forums.sui.io/xinxingliu86/32/30977_2.png) [@xinxingliu86](https://forums.sui.io/u/xinxingliu86)\
**Post date:** [November 16, 2024, 12:24am UTC](https://forums.sui.io/t/official-full-node-returns-502-when-querying-events-in-history/46424/1 "2024-11-16T00:24:06Z")

</div>

When I run the following RPC call

```auto
curl --request POST \
     --url https://fullnode.mainnet.sui.io \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "suix_queryEvents",
  "params": [
    {
      "MoveEventType": "0x1eabed72c53feb3805120a081dc15963c204dc8d091542592abaf7a35689b2fb::factory::CreatePoolEvent"
    },
    {"txDigest":"Ev63xvT8S6xJemyi5hBScopjoiTVxAqX3ctC7EfJvUsd","eventSeq":"0"},
    10,
    true
  ]
}'

```

I get a 502:

```auto
<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>502 Server Error</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Server Error</h1>
<h2>The server encountered a temporary error and could not complete your request.<p>Please try again in 30 seconds.</h2>
<h2></h2>
</body></html>

```

This won’t happen if we change the cursor to a newer one. This issue is blocking our app to correctly read Cetus pool list, hence our app stops running for SUI network.